Hi All, We ran the spectre meltdown checker tool provided by: https://github.com/speed47/spectre-meltdown-checker. And it says that we are still vulnerable to variant #2 since RSB filling is not enabled in our kernel When we googled, the following bugzilla from RH suggests that it is enabled by default: https://bugzilla.redhat.com/show_bug.cg ... 2018-15572 When I was checking the source code of the latest CentOS kernel ,i don't see this feature flag set anywhere - X86_FEATURE_RSB_CTXSW. Could you please tell us ,If the Latest CentOS kernel supports RSB filling or not ?! Regards, Vyshnav -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-devel/attachments/20181030/7bcd076d/attachment-0007.html>